Answers

Subtract 63/42 from 2/4

1^st number: 2/4, 2^nd number: 1 21/42

2/4 - 63/42 is -1/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   2/4 = 2 × 21/4 × 21 = 42/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   63/42 = 63 × 2/42 × 2 = 126/84
4. Subtract the two like fractions:
   42/84 - 126/84 = 42 - 126/84 = -84/84
5. After reducing the fraction, the answer is -1/1

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